Gaiter-trimming machine



March 10, 1931. s, FINN 1,795,485

GAITER TRIMMING MAbHINE Filed May 27. 1927.. 's'sneets-sheet 1 Fig.1.

WIIIIHIIH March 10, 1931. 5, J, N 1,795,485

GAITER TRIMMING MACHINE Filed May 27, 192' 3 Sheets-Sheet 2 S' J. FINNGAITER TRIMMING MACHINE Filed May 27, 192" 5 Sheets-Sheet 5 March 10,1931.

Patented Mar. 10, 1931 UNITED STAT SIDNEY J. FINN, OF BEVERLY,MASSACHUSETTS,

:ESIGNOR TO UNITED SHOE MACHIN- ERY CORPORATION, OF EATER-$0M, NEW 3' ACGR-POELATIGN OF NEW JERSEY GAITER-TRILMEEIWG I IAGHINE Applicationfiled May 27,

This invention relates to the manufacture of footwear and is illustratedwith reference to a machine arranged to trim projecting portions fromthe linings of arctics.

In the manufacture of arctics or, as they are also called by rubber shoemanufacturers, gaiters, it is necessary, after the vulcanizing of thearctics and when they are otherwise substantially completed, to trimprojecting portions or flaps from their linings. The manner in which thevarious pieces which go to make up the lining of 'anarctic areordinarily assembled is such that it is necessary to remove two pairs offlaps from the interior of each arctic. The flaps of one pair extendfrom the top of the arctic downwardly near the back of its upperapproximately parallel to each other until they approach within two iches or so of the foXing when they swing forwardly in a curve, finallyreaching the vicinity of the foxing substantially at the base of thebellows of the arc-tic. The flaps of the other pair run from the top ofthe arctic to the location of the foxing starting an inch or two to therear of the forward edge of the quarter and extending roughly parallelto the dge of the bellows throughout the greater portion of its lengthbut ending near the in tersection of the bellows and the foXing.Heretofore these flaps have been trimmed off manually by means ofordinary scissors or shears. The trimming in this way of the lowerportion of these flaps, particularly of the rearmost pair, is awkwardand the operation is, therefore, slow and correspondingly expensive,especially in the case of high arctics.

It is an object of the present invention to provide simple andinexpensive machine well adapted to trim these projecting portions orflaps from the linings of arctics. In ac cordance with an importantfeature of the in-' vention the illustrated machine, which comprises apreferred embodiment of the invention, provided with cutters arranged toenter the interior of anarctio, trimming a projecting portion or flapfrom the lining as they enter and following the line of intersection ofthe flap and the body of the upper of the arctic to the end of the fiapadjacent to the foxing. To facilitate the presentation of arctics 19 27.Serial no, 184,815.

to the trimming cutters, the cutters are preferably carried by'an armarranged, as the trimming proceeds, also to be received within thearctic.

Another feature of the invention comprises feeding means illustrated asa plurality of friction-driven feed rolls positioned to engage oppositesides of the projecting por tion or flap which is to be trimmed OE andarranged to feed the flap at an angle toithe direction in which theupper of the arctic is fed thereby tensioning the material transverselyof the direction of the cut as the trimming proceeds. This transversetensioning of the material makes it much easier to out than wouldotherwise be the case and thus greatly facilitates the trimmingoperation.

it further feature of the invention com- TflSQS the combination of apair of thin rotary dish cutters arranged to engage opposite sides ofthe projecting portion or flap to be trimmed from the upper of thearctic and a plurality of guards for the cutters arranged to preventdamage to the upper of the arctic by the cutters while at the same timepermitting free engagement of the flap with the cutters.

Pro ferably and as illustrated herein, a suitable hold-down member isprovided in cooperative relation to the cutters and arranged to engagethe outer surface of the upper of the arctic at a point opposite andadjacent to the point at which the cutters operate to trim theprojecting portion or flap. This aids in the proper presentation of thearctic to the cutters and assists in controlling the position of thearctic during the trimming operation. lifeans, illustrated as manuallycontrolled, are provided for moving the hold-down member into and on: ofengagement with the Work.

In another aspect the invention includes an improved method adapted foruse in trimming projecting flaps from the linings of arctics and otherarticles of foot-wear characterized by feeding the upper of the arcticor other article of footwear and the flap to be trimmed therefrom alongdiverging paths, preferably at an acute angle to each other, so as totension the material to be out transverse'ly 0. Lee line of the cut asthe trimming proceeds. Preferably, and as herein disclosed, the arcticor other article to be trimmed is fed relatively positively and theprojecting portion or flap to be trimmed therefrom is fed impositivelywith a tendency to move at a greater speed than that of the arctic orother article, whereby the tension is maintained.

l Vith the above and other objects and features in view, the inventionwill now be described with reference to the accompanying drawings andpointed out in the claims.

In t ie drawings Fig. 1 is a side elevation of a trimming machineembodying the present invention;

Fig. 2 is a perspective view of the head of the machine showing themanner in wnich an arctic is presented to the machine to have aprojecting portion of do p trimmed from its nmng;

Fig. 3 is a front view, F l a plan view, and Fig. 5 a side elevation ofthe trimming cutters, feed rolls, hold-down roll, and associated partsof the machine Fig. 6 is a sectional view on the line VL-Vl of Fig. 5and Fig. 7 is a detailed view of a spring serving as part of thefriction drive of the feed rolls of the machine.

The illustrated machine is designed for trimming projecting portions orflaps from the interiors of arctics. To this end, first referring to itgenerally, the machine shown in the drawings is provided with a pair ofrotary disk knives or cutters carried at the end of a projecting arm ofsuch a shape that the knives and arm can be received inside an arctic orgaiter as the projecting portions or flaps are trimmed from its lining.A pair of guard members arranged peripherally of the knives and a thirdguard member arranged at the rear of the knives are provided to protectthe arctic from damage by the rotating knives. Below the knives and in aposition to engage the projecting flap to be trimmed from the arctic area pair of frictionally-driven feed rolls which tend to feed the flap ina direction at an acute angle to the direction in which the upper of thearctic is moved by the operative. A hold-down roll engages the outsideof the arctic opposite the disk knives and helps to position the arcticproperly. This hold-down roll is carried by an arm held by a sprin ininoperative position, and is moved into engagement with the work by atreadle connected to the roll-carrying arm by a spring which limits theforce with which the roll can be pressed against the work.

Going now into detail, as shown in Fig. the machine is provided with acolumn 1 carrying a head 12 and rising from a base 1 which carries atthe rear an electric motor 1 connected by a pulley 18, belt 20, andpulley 22 with a forwardly and downwardly inclined drive shaft 24suitably journaled in the head of the machine. Idler pulleys 26 areprovided to direct the belt between pulleys 18 and 22. Surrounding theshaft 24, and thus also inclined forwardly and downwardly, is a hollowsupporting arm 28 provided at its forward end with bearings for a pairof inclined upwardly extending cutter carrying shafts 30, (Figs. 5 andthe axes of which lie at right angles to arm 28 and in a plane at rightangles to the a:-:ie of the shaft 2%. As shown best in t3, the bearingsfor shafts 30, 32 comprise a pair of upwardly extending approximatelycylindrical members 34-, 36 having their upper ends cut off in a planeat right angles to the axes of shafts 30, 32.

The drive shaft carries at its forward extremity a skew gear 38 meshingwith a skew gear 4-0 fast upon the lower end of the shaft 32. Also fastupon the shaft 32 is spur gear 42 meshing with a similar spur gear l ifast upon the sha t 30. A suitable end thrust bearing is provided forthe shaft 32 to take up the thrust of the skew is illustrated, thiscomprises a ball 46 contained in a socket in the lower end of the shaft32 and bearing upon a plunger d8 pressed upwardly by a spring 50 housedwithin the plunger. T he lower end of the spring 50 bears upon a screw52 threaded into a sleeve 5% carried by a plate 56 attached to the endof the arm 28. Thus it will be seen that as long as motor 16 operates,shafts 30 and 32 will be driven con tinuously, the being such that theseshafts rotate in opposite directions as indicated by the arrows sh wn inn (i, the shaft 30 moving in a clockwise direction and shaft 32 in acounterclockwise direction as viewed in Fig. 4.

Secured by screws 60, 62 to the tops of the shafts 30 and 32 are a pairof overlapping shear members illustrated thin disk knives or cutters 64,66, the lower surface of the former and the upper surface of the latterbeing plane surfaces while the other surfaces of the two knives aresomewhat beveled. toward their peripheries to provide sharp cuttingedges. It will be observed, as shown best in Fig. 4, that the edges ofthe disk knives 64-, 66 together form between them an open andunobstructed substantially J-shaped space 6? well adapted to receive aprojecting portion or flap to be trimmed from the interior of the upperof an arctic. The shearing plane of the cutters 64, (it; is parallel tothe length of the arm 28, and the cutters are therefore enabled to severthe described flaps at their roots without attacking other parts of anarctic.

In addition to the disk knives 64, 66, the shafts 30, 32 also carry apair of feed rolls 70. '72 arranged to engage opposite sides of the flapto be trimmed as shown at 73 in 5 and 6. These feed rolls are eachprovided.

with a pair of circumferential grooves 74, 76 arranged to receive a pairof pawl-shaped strippers 7 8, 80 carried by rods 81, 83 positionedsomewhat to the rear of the axes of shafts 30, 32. The strippers 78, 80serve to prevent the flap 73 from adhering to either of the feed rolls.In addition to the grooves 74, 76, the feed roll 70 is provided with anannular toothed member 84, frictionally held in another groove formed infeed roll 70, opposite and projecting toward a groove 86 in the feedroll 72, the toothed member 84 and the groove 86 being positionedsomewhat to deform the flap gripped between the feed rolls so as to helpthe feed rolls to get a good hold upon the flap.

Keyed to the shafts 30 and 32, as shown at 90 (Fig. 6), are two pairs ofwashers 92, 94 and 96, 98. The upper edges of Washers 94 and 98 arebeveled and are overhung by similarly inclined surfaces formed upon feedrolls 70, 72. Frictionally to connect washers 94 and 98 and, therefore,shafts 30, 32 with feed rolls 70, 72 and thus to drive the feed rolls70, 72, a pair of arcuate springs 100 (Figs. 6 and 7) are positionedbetween washers 94 and 98 and the overhanging surfaces of feed rolls 70,72. Between the upper ends of feed rolls 70, 72 and disk knives 64, 66are positioned washers 102, 106 and flanges 104, 108 formed on shafts30, 32.

Carried by supports 105, 107 (Figs. 3 and 6), secured to the end of thearm 28, and partially surrounding disk knives 64, 66, are a pair ofarcuate guards 110, 112 (Fig. 4) which serve to avoid injury to anarctic if it should be carelessly presented to the machine. Overlappingthe rear of the disk knives 64, 66 is a third guard 114 resting upon theupper surfaces of the portions of the strippers 78, 80 remote from thefeed rolls and carried by the rods 81, 83 to which the strippers 7 8, 80are secured. The rods 81, 83 are carried by a bracket or bracketssecured near the lower end of the arm 28.

A second arm 128 rotatably carrying at its outer end a hold-down roll130 is pivoted to the head 12 of the machine above the arm 28 andapproximately parallel thereto. The roll 130 is, when the machine is atrest, held spaced from the disk knives 64, 66 by a spring 132 hearing atone end against a seat 134 carried by the head of the machineand'adjustable by means of a screw 136, and hearing at the other endagainst a suitable abutment 138 carried by the arm 128. To move the arm128 so as to bring the roll 130 into engage ment with the externalsurface of the body of an arctic adjacent to the cutting point as shownin Figs. 5 and 6, the arm 128'is secured to the upper end of a cable140, passed througha guard tube 142,and carrying upon its lower end acollar 144 which forms a seat for a spring 146 (Figs. 1 and 2). Theupper endof spring 146 bears against a finger 148 clamped to the end ofa bent rod 150 which extends upwardly, then rearwardly, and tinallydownwardly through the column 10 as shown in Fig. 1. A guide member 154and a suitable bearing 156 serve to maintain the rod 150 againsttransverse movement while permitting vertical movement. The lower end ofthe rearward portion of the rod 150 is connected by a tension spring 158with a lever 160 fulcrumed at 162 to the base of the machineandconnected intermediate its ends by a link 164 with a treadle 166fulcrumed at 168 to the base of the machine. A spring 170 surroundingthe upper portion of the rear arm of the rod 150 bears at its upper endagainst a pin 172 passing through the rod, and at its lower end againsta washer 174 seated against the upper end of the bearing 156 and servesto lift the rod 150 when the treadle is released. Thus it will be seenthat depression of the treadle 156 serves to bring the roll 130 intoengagement with the outer surface of the upper of the arctic a flap ofthe lining of which is engaged by disk knives 64, 66, the pressure ofthe roll 130 being limited to the force which can be transmitted byspring 158, but being suflicient to maintain the body of the arcticagainst the cutters. Also, when the treadle is released the arm 128 andthe roll 130 are moved away from the disk knives by the spring 132 tofacilitate the removal of the work from the machine.

Since the linings of arctics are commonly made of rubberized material,it is desirable slightly to lubricate the surfaces of disk knives 64,66. For this purpose the machine is provided with an oil reservoir of awell known type, the outlet of which is controlled by a plunger 182operated by a hand lever 184. The oil passes from the reservoir 180through a tube 186 paralleling the arm 28 and then extending upwardly tothe vicinity of the disk knife 64upon which it discharges the oil. Theoutlet to reservoir 180 should be adjusted so that a drop of oil passesout every two or three minutes, lubricating the disk knives 64, 66 butnot suflicient in any way to damage the arcticsoperated upon.

The rear portion of the upper of an arctic commonly comprises a layer200 (Figs. 2, 5 and 6), usually made of two sheets of rubberized fabricvulcanized together, and two strips 202 of lining material portions ofwhich are vulcanized to the inside of the layer 200 in overlappingrelation at the extreme rear of the arctic. The forward edges or margins73 of strips 202 are loose and are two of the projecting portions orflaps here tofore mentioned which must be trimmed off at or close totheir roots one of which coincides with the line indicated at 206 inFig. 2. In using the machine, the upper edge of the arctic to beoperated upon is gripped by the operative upon both sides of a flap 73as shown in Fig. 2 and the-rootof the upper end of the flap isintroduced between t isk knives 64, claim as n W enl desire to secure byLetters 66. Then the operative steps upon the Patent of "he UritecStates is: treadle thereby bringing the roll down 1. i hine fortrimming; projecting porens h )S from the linings of erotics or 21' lsung, in combinek and 6 to maintain the root of the iap to the line ofthe cut, after \VlllCll he moves tie arctic tion hairinto the positionshown in Figs. 2 i

lire

c e of I001; n to enter the interlor of for rardly and upwardly in adire "o trim. from lining as they enter ing a large component in therection of the extending from length of ti e arm 28, until reaches theposii it; toning, und tion shown in Fig. then he lets go of the to frlion the upper with the lit located at extreme fleeting portion rear ofthe arctic i 3f the upper of the arctic proceeds.

for trimming the linings of mt. o1 foot-near liming,

, uil1lJ1l12l,Ll.Ull, an arm arranged to enter portion of the flap is ti1 arctic article of iootwear the trimming 1s ompleted h be trimmed, andcutting and removes the arctic f ns c211 .1 arm enn arranged to Eacharctic has also a engage o pro ortion of the llllli'lg hetrim elf theprojecting ic or other article of foot 2: dirwtion having a large in thedirection of the ing portions having must be trimmed 0? forward edges oft tic upon a line such Fig. 9. These lisp J 7 V Mancin similar manner tor trin ning the linings of that it is not neces ticles motwenr having,take hold of the he arm n i'nng'cd to enter the if :ootvrm r the liningit since these 1 eps e traight "from the to, of (i i which is H il, anda pair Oil 1'0- cnti-en f th j' E- g A l, cutters czzrried o said armand er anged it should he observed the-.t durino" r a projecting p rtionof the lining ming operation the arctic is move: I i em and to trim ithe projecting ing plane of dist: knives (56 n1 thus a is moved lengthvise of the projecting;

at an acute angle to the direction in which rolls 70, 72 tend. to fc len the p o ecting (lap 73. Thus the action or feed rolls '70, 7 whichtend to feed t 1e fiep 72 faster hen he arctic in comhi notion, is fedmanually, serves to tension the fabric i rim projecting in a directionhaving a substantial com- 0 i ero cs or other ponent transverf-iely othe line of cut. This articles of footw ar, '1 cutting meanshetransverse tension greatly facilitates he mg carried by an tin reed,as the trimtrimming' operation. lit else tends tr n l -i ca i l formed 5nit the trimming to proihe arctic or the upper of the erotic down towersknives 6%, 66 and insures close tnmm the flap. It is to be noted,moreover, ti :1 sublinear speed of the cutting edges of t n i towenl, leof.

knives Get, (36 and consequei tly the surface A machine for trimmingprojecting porspeed of the feed rolls 7O, '72, when rui ning "ons fronthe i s of erctics or other aridly, is many times roster then the speedit cl- 0. nc, in combination,

to engage opposite on of a 1i i by an arm arranged, as

l to enter arctic or mmin may pro- 2 which the ope *etor moves thearctic durin the trimming operation. However, since rolls 70, 72 arefrictionally driven, those rolls are much retarded during Le trimmingoperation. Also, they may slii elatively to the 0 nin said i l on.trimming proc r article so that from the extreme top of the arctic orflap T3 of the arctic, still nmintaining tree ceed, tion, however, byreason of the toothed ed other article of foot veer interlorly is far asof the member 8e; and times lzeepxrg the foxmg' thereof.

the projecting flap under tension though 6. A machine for t 'immingprojecting feeding impositively rather than positively flaps fromarctics or other articles of foot and thus preventing suchdisintegration of Your having, in coml'iination,means fortrimthe chiptrimmed from the Work as might inming projecting flaps of fabric fromarctics or other articles of footwear, and means for terfere with thefeeding action.

Having described my invention, What I tensiomng a flap transversely ofthe direction of the trimming cut at the line of the cut as the trimmingproceeds.

7. A machine for trimming projecting flaps from arctics or otherarticles of footwear having, in combination, cutting means k to trim aflap from an arctic or other article, and a plurality of feed rollsengagi... opposite sides of the flap and tending to feed the flap in thegeneral direction of the trimming cut and at the same time tensioningthe material at the line of the cut transversely of the direction of thecut.

8. A machine for trimming projecting portions or flaps from articles offootwear having, in combination, cutters arranged. to trim a projectingportion or flap from the interior of an article of footwear, and aplurality of frictionally driven feed rolls engaging opposite sides ofthe projecting portion or flap arranged to carry the chip away from thecutters and at the same time to tension the material at the line of thecut transversely of the direction of the cut.

9. A machine for trimming projecting flaps from arctics or otherarticles having, in combination, a pair of co-operating cutters arrangedto trim a flap from an arctic or other article, and a plurality of feedrolls engaging opposite sides of the flap and arranged to feed the flapin the general direction of the trimming cut and at the same time totension the material at the line of the cut transverse 1y of thedirection of the cut.

10. A machine for trimming projecting flaps of fabric from arctics orother articles comprising a pair of disk cutters arranged to receivebetween them a flap projecting from the interior of an arctic or otherarticle of footwear and extending from the top a substantial distancetoward the sole thereof, and to trim it from the arctic or otherarticle, and feeding means arranged to engage the flap inside the arcticor other article adjacent to the trimming cut.

11. A machine for trimming projecting flaps of fabric from arctics orother articles comprising a pair of disk cutters arranged to receivebetween them a flap projecting from the interior of an arctic or otherarticle of footwear and extending from the top a substantial distancetoward the sole thereof, and to trim it from the arctic or otherarticle, and feeding means arranged to engage the flap inside the arcticor other article adjacent to the trimming cut and to tension thematerial transversely of the direction of the cut as the cuttingproceeds.

12. A machine for trimming projecting flaps from arctics or otherarticles of footwear having, in combination, cutting means arranged totrim a projecting flap from an arctic or other article of footwear, aplurality of feed rolls adjacent to said cutting means arranged toengage opposite sides of a ,fiap to exert a feeding action on the arcticor other article to present it progressively to the cut ting means, anda pair of strippers operative to strip the trimmed portion of the flapfrom the feed rolls.

13. A machine for trimming projecting flaps from arctics or otherarticles of footwear having, in combination, cutting means arranged totrim a projecting flap from an arctic or other article of footwear, apair of feed rolls adjacent to saidcutting means arranged to engageopposite sides of the flap to exert a feeding action on the arctic orother article th by to j resent it progressively to the cutting means,and a pair of strippers, one engaging each of the feed rolls, operativeto strip the trimmed portions of the flap from the feed rolls. I

14. A machine for trimming projecting flaps from artics or otherarticles of footwear having, in combination, a pair of powerdrivenshafts, a pair of co-operating disk cutters carried by the respectiveshafts, and a plurality of feed rolls adjacent to the cutters andmounted for rotation on the respective shafts, both said feed rollsbeing driven frictionally from the shafts and arranged to engageopposite sides of a flap to assist in feeding the article to thecutters.

15. A machine for trimming projecting portions from arctics or otherarticles of footwear having, in combination, means for trimming aprojecting portion from an arctic or other article of footwear, aplurality of feed rolls adjacent to the trimming means and arranged toreceive between them the pro jecting portion which is to be trimmed off,said feed rolls each being provided with a circumferential groove, and astripper in each groove to prevent the chip trimmed from the workfromadhering to the feed rolls.

16. A machine for trimming projecting,

portions from arctics or other articles of footwear having, incombination, a pair of cooperating disk cutters arranged to trim a projecting portion from an arctic or other article of footwear, a pluralityof feed rolls adjacent to the cutters and arranged to receive betweenthem the projecting portion which is to be trimmed off, said feed rollseach being provided with a plurality of circumferential grooves, and aplurality of strippers in the grooves to prevent the material of thework from adhering to the feed rolls.

17. A machine for trimming projecting flaps from the interiors ofarctics or other articles of footwear having, in combination, aprojecting arm formed and arranged to enter an arctic or other articleof footwear, means carried by said arm for trimming from an arctic orother article of footwear a projecting flap of fabric extending from thetop a substantial distance toward the s le th r f, and m ans for tnsioni g the flap transversely of the direction of the trimming cut as ihe trimming proceeds.

18. A machine for trimming a flap from articles of footwear having, incombination, means for trimming from the interior of an article offootwear a flap extending from the top of the article of footwear, asubstantial distance toward its solo, a pair of feed rolls arranged toengage and feed said flap, one of the feed rolls having a groove and theother feed roll having a member opposite the groove in the first feedroll and projecting toward said groove to cause the feed. rolls todeform the flap engaged by said feed rolls and thereby firmly to gripthe flap.

19. A machine for trimming a flap from articles of footwear having, incombination, means for trimming a flap from an article of footwear, apair of feed rolls arranged to engage and feed said flap, one of thefeed rolls having a groove and the other fGQC roll having a frictionallyheld toothed member opposite the-groove in the first feed roll andprojecting toward said groove to cause the feed rolls to deform the flapengaged by said feed rolls and thereby firmly to grip the flap.

20. A machine for trimming projecting portions from arctics or otherarticles of footwear having, in combination, a pair of disk cuttersmounted to be received bodily within an arctic or other article offootwear and arranged to engage opposite sides of a portion to betrimmed from the arctic or other article, and a pair of guards for thecutters arranged to protect the work flOll'l damage by the edges of thecutters and leaving unguarded a substantially V-shaped space between thecutters.

21. A machine for trimming projecting flaps from arctics or otherarticles of footwear having, in combination, a. pair of disk cuttersarranged to receive between them a flap to be trimmed from an article, apair of guards arranged peripherally of the cutters to protect the workpiece from the edge of the cutters and arranged to leave unguarded a V-shaped space between the cutters so that the flap may have unobstructedaccess to the cutters, and another guard arranged to overlie the cutterson the side of their centers remote from said V-shaped space.

22. A machine for trimming projecting portions from arctics or otherarticles having, in combination, a pair of cutters arranged to engageopposite sides of a projecting portion extending from the top asubstantial distance toward the sole interiorly of an arctic or otherarticle and to sever the projecting portion therefrom, and a holddownmember arranged to engage the arctic or other article opposite theprojecting portion.

23. A trimming machine comprising, in combination, a pair of shearingcutters supported and arranged to operate inside an arctic or otherhollow article of work to sever a flap attached to the inside of thearticle, means arranged to operate one or both of said cutters, and aroll the periphery of which is arranged to maintain the body of thearticle against the cutters adjacent to the eu ting point thereof andthereby dire:-t the root of the flap to said cutting point.

24:. A machine for trimming proj cting flaps from arctics or otherarticles of footwear having, in combination, a pair of disk cuttersmounted on parallel axes and arranged to engage opposite sides of a flapto be trimmed from an arctic or other article of footwear and to severthe flap therefrom, and a hold-down roll mounted for rotation about anaxis substantially parallel to the plane of the axes of the disk cuttersand arranged to engage the work piece opposite the flap therebycontrolling the relation of the work piece to the cutters as thetrimming proceeds.

25. A machine for trimming projecting portions or flaps from arctics orother arti- CLGS havii in combination, a pair of cutters arranged toengage opposite sides of a projecting portions or flap to be trimmedfrom an arctic or other article to sever the projecting portion or flaptherefrom, a holddown member arranged to engage the arctic or otherarticle opposite the flap to be trimmed therefrom to hold the arctic orother article in co-operative relation to the cutters, a treadle, andconnections from the treadle to the holddown member for moving saidhold-down member into and out of engagement with the arctic or otherarticle.

26. A machine for trimming projecting flaps from arctics or otherarticles having, in combination, a pair of disk cutters arranged toengage opposite sides of a flap to be trimmee from an arctic or otherarticle and to sever the flap therefrom, a hold-down roll arranged toengage the work piece opposite the flap to be trimmed therefrom to holdthe arctic or other article in co-operative relation to the cutters, andmanually controlled means for moving said hold-down roll into and out ofengagement with the work piece.

27. A machine for trimming projecting flaps from the interiors ofarctics or other articles of footwear having, in combination, a frame,an arm projecting from the frame, a pair of disc knives carried by saidarm for rotation about axes substantially perpendicular to said arm andarranged to engage and trim a flap from the interior of an arctic orother article, a second arm movably carried by the frame, a hold-downmember carried by the second arm, and means for moving the second arm tobring the holddown member into engagement with an arctic or otherarticle to be operated upon to hold the upper of the arctic or otherarticle in co-operative relation to the trimming 32. A machine fortrimming the linings means.

28. A machine for trimming projecting flaps from the interiors ofarctics or ot er articles of footwear having, in combination, a frame,an arm projecting from the frame, a pair of di 1 cutters carried by thearm and arranged to receive between them and trim a projecting flap fromthe interior of an arc tic or other article, a second arm movablycarried by the frame ap n'oxin'iately paral,

lel to the first, a hold-down roll carried by the second arm, and meansfor moving the second arm to br the hold-down roll into engagement withthe arctic or other article operated upon to engage that articleopposite the flap to be trimmed therefrom, thereby maintaining thearticle in co-operative relation to the cutters as the trimmin proceeds.

29. A machine for trimming projecting portions or flaps from theinteriors of arc tics or other articles of footwear having, incombination, a pair of cutters arranged to engage opposite sides of aprojecting portion or flap to be trimmed from the interior of an arcticor other article of footwear and to sever the projecting portion or flapthere from, a hold-sown member arranged to engage the arctic or otherarticle of footwear opposite the projecting portion or flap to betrimmed therefrom and adjacent to the cutters to hold the arctic orother article of footwear in co-operative relation to the cutters, andmeans for moving said hold-do 7rn member into and out of engagement withthe arctic or other article of footwear arranged to limit the force withwhich the hold-down member i held in engagement with the arctic or otherarticle of footwear. 30. A machine for trimming projecting flapsfrom'arctics or other articles of f i wear comprising a pair of dislrcutters ranged to enter the interior of an arctic or other article offootwear and to receive be tween them a flap extending from the toptoward the sole thereof to trim it from arctic or other article, feedingmeans arranged to engage the flap adjacent to the trimming cut, andmeans for lubricating the work-engaging surfaces of the disk cutters,

31. A machine for trimming projecting flaps from the linings of arcticsor other articles of footwear having, in combination,

'= an arm arranged to enter an arctic or other and means for lubricatingthe cutters comprising a source of supply of lubricant and a pipeextending from the source of supply approximately parallel to thecutter-carrying arm and arranged to deliver lubricant to the cutters.

of arctics or other articles of footwear having, in combination, an armarranged to enter an arctic or other article of footwear the lining ofwhich is to be trimmed, and a pair of cutters carried by said arm andeach mounted for rotation about'an axis substantially at right angles tothe general direction of said arm, said cutters being arranged to engagea projecting portion ofthe lining between them and to trim off theprojecting )OPtiOIl of the lining as the arctic or other article offootwear is moved in a direction having a. large component extending inthe direction of the length of the arm.

A machine for trimming the linings of arctics or other articles offootwear having, in combination, an arm arranged to enter an arctic orother article of footwear the lining of which is to be trimmed, a pairof shafts carried by said arm arranged substantially at right angles tothe general direction of the arm, and a pair of rotary cutters mountedupon said shafts and arranged to engage be tween them a projectingportion of the .lin- 1 ing of the arctic or other article and to trim ohthe pro ecting portion as the arctic or other article is movedlengthwise of the pro- 34. A machine for trimming the linings of arcticsor other articles of footwear having, in combination, an arm arranged toenter an arctic or other article of footwear the lining of which is tobe trimmed, a pair of shafts carried by said arm and arranged forrotation about axes extending substantially at right angles to thegeneral direction of the arm, and a pair of thin rotary disk cuttersmounted upon said shafts and arranged to engage opposite sides of aprojecting portion of the lining of the arctic or other article and totrim oil the projecting portion as the arctic or other article is movedlengthwise of the projecting portion.

35. A machine for trimming projecting flaps from the linings of arcticsor other articles offootwear, having, in combination, an

arm arranged to'enter an arctic or other article of footwear the liningof which is to be trimmed, a pair of rotary cutters carried by said armand arranged for rotation about axes substantially at right angles tothe general direction of the length of the arm, and a pair of feed rollsmounted for rotation about the same axes as the cutters and arranged toengage opposite sides of a flap to be trimmed from the interior of thearctic or other article and tending to feed the flap in the generaldirection of its length thereby presenting the flap to the cutters andcausing the cutters to sever the flap from the arctic.

36. A machine for trimming projecting flaps from the linings of arctic-sor other articles of footwear having, in combination, an arm arranged toenter an arctic or other article of footwear the lining of which is tobe trimmed, a pair f rotary cutters carried by said arm and arranged forrotation about axes substantially at right angles to the generaldirection of the length of the arm, and a. pair of feed rolls mountedfor rotation about the same axes as the cutters and arranged to engageopposite sides of a flap to be trimmed from the interior of the arcticor other article and tending to feed the flap in the general directionof its length thereby presenting the flap to the cutters and causing thecutters to sever the flap from the arctic or other article, the feedrolls being arranged at the same time to tension the material of theflap transversely of the direction of the cut.

37. A method of trimming projecting flaps from the lining of arctics orother articles of footwear characterized by feeding the up per of thearctic or other article of footwear and the flap to be trimmed therefromalong diverging paths as the trimming proceeds and thereby tensioningthe material to be cut transversely of the line of the cut.

38. A method of trimming projecting portions from the linings of arcticsor other articles of footwear characterized by feeding the upper of thearctic or other article of footwear positively and a flap to be trimmedtherefrom impositively along paths diverging at an acute angle as thetrimming proceeds and thereby tensioning the material to be cut.

39. A trimming machine comprising a supporting arm formed and arrangedto project into an arctic or other hollow article of work, a pair ofcutters arranged in shearing relation and mounted on said arm to operatein side the hollow article of work, mechanism mounted on said arm foroperating one or both of said cutters, and means mounted on said armadjacent to said cutters to direct an unattached margin of material onthe inside of the article into the operating field of the cutters.

40. A trimming machine comprising a hollow supporting arm formed andarranged to project into an arctic or other hollow article of work, apair of rotary disk cutters arranged in shearing relation and mounted onsaid arm to operate inside the hollow article of work, mechanismarranged in said arm for driving said cutters, and means mounted on saidarm adjacent to said cutters to direct an unattached margin of materialon the inside of the article into the operating field of the cutters.

41. A trimming machine comprising a supporting arm formed and arrangedto project into an arctic or other hollow article of work, a pair ofcutters arranged in shearing relation and mounted on said arm to operateinside the hollow article of work, the shearing plane of said cuttersbeing substantially parallel to the length of said arm, mcchanismmounted on said arm to operate said cutters, and means arranged adjacentto the cutters to direct the root of an unattached margin of material onthe in side of the article into the operating field of the cutters.

42. A trimming machine comprising a supporting arm formed and arrangedto project into an arctic or other hollow article of work, a pair ofcutters arranged in shearing relation and mounted on said arm to operateinside the hollow article of work, the shearing plane of said cuttersbeing substantially parallel to the length of said arm, mechanismmounted on said arm to operate said cutters, means mounted on said armadjacent to the cutters to direct an unattached margin of material onthe inside of the article into the operating field of the cutters, andmeans arranged to maintain the body of the article against the cuttersat the cutting point thereof to insure severing said unattached marginat its root.

In testimony whereof I have signed my name to this specification.

SIDNEY J. FINN.

